Infusion set for an infusion device

Abstract

An infusion set includes a base part for attaching to the skin of a patient. A cannula for supplying a liquid medicament into the body of the patient is provided on the distal side of the base part. Additionally, a cap part for holding the infusion set by means of the patient or an insertion device or a piercing aid is provided, a needle being provided on the distal side thereof. The base part and the cap part can be connected together in order to attach the base part connected to the cap part to the skin of the patient. The needle is arranged within the cannula, with the tip of the needle having a conical shape, and the needle is made of a solid material.

What is claimed is: 
     
         1 . An infusion set, comprising:
 a base part, wherein the base part comprises a proximal side and a distal side, wherein a cannula configured for supplying a liquid medicament into a patient is provided on the distal side of the base part;   a cap part configured for holding the infusion set by a user, by an insertion device or by a piercing aid, wherein the cap part comprises a proximal side and a distal side, and wherein a needle is provided on the distal side of the cap part,   wherein the base part and the cap part are configured to be connectable to each other, and when connected are configured for connecting the base part to skin of a patient,   wherein the needle is arranged within the cannula and at least a distal end of a tip of the needle projects beyond a distal end of the cannula, and   wherein the tip of the needle has a conical shape and the needle is made of a solid material.   
     
     
         2 . The infusion set according to  claim 1 , wherein the tip of the needle is straight or obliquely conical. 
     
     
         3 . The infusion set according to  claim 1 , wherein the cannula is a soft cannula. 
     
     
         4 . The infusion set according to  claim 1 , wherein the base part and the cap part are connected in a rotationally-fixed manner. 
     
     
         5 . The infusion set according to  claim 1 , wherein a diameter of the needle is greater than or equal to 0.2 mm and less than or equal to 0.55 mm. 
     
     
         6 . The infusion set according to  claim 5 , wherein the diameter of the needle is between 0.26 mm and 0.5 mm. 
     
     
         7 . The infusion set according to  claim 6 , wherein the diameter of the needle is about 0.36 mm. 
     
     
         8 . The infusion set according to  claim 1 , wherein a length of the needle projecting from the distal side of the base part is greater than or equal to 10 mm and less than or equal to 40 mm. 
     
     
         9 . The infusion set according to  claim 8 , wherein the length of the needle is between 20 mm and 30 mm. 
     
     
         10 . The infusion set according to  claim 9 , wherein the length of the needle is about 24.4 mm. 
     
     
         11 . The infusion set according to  claim 1 , wherein the tip of the needle is conical and has a cone angle greater than or equal to 10° and less than or equal to 35°. 
     
     
         12 . The infusion set according to  claim 11 , wherein the cone angle of the conical tip of the needle is between 14° and 30°. 
     
     
         13 . The infusion set according to  claim 12 , wherein the cone angle of the conical tip of the needle is about 20°. 
     
     
         14 . The infusion set according to  claim 1 , wherein a diameter of the needle is greater than or equal to 0.2 mm and less than or equal to 0.55 mm, a length of the needle projecting from the distal side of the base part is greater than or equal to 10 mm and less than or equal to 40 mm, and the tip of the needle is conical and has a cone angle greater than or equal to 10° and less than or equal to 35°. 
     
     
         15 . The infusion set according to  claim 14 , wherein the diameter of the needle is between 0.26 mm and 0.5 mm, the length of the needle is between 20 mm and 30 mm, and the cone angle of the conical tip of the needle is between 14° and 30°. 
     
     
         16 . The infusion set according to  claim 15 , the diameter of the needle is about 0.36 mm, the length of the needle is about 24.4 mm, and the cone angle of the conical tip of the needle is about 20°. 
     
     
         17 . The infusion set according to  claim 1 , wherein the needle is made of metal. 
     
     
         18 . The infusion set according to  claim 17 , wherein the metal comprises stainless steel, stainless steel according to ISO15510, or a steel alloy. 
     
     
         19 . The infusion set according to  claim 1 , wherein the needle is made of one or more of: iron, copper, bronze, aluminum, magnesium or an alloy of combinations thereof.